455420720 has 40 divisors (see below), whose sum is σ = 1073371776. Its totient is φ = 179670528.

The previous prime is 455420653. The next prime is 455420729. The reversal of 455420720 is 27024554.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (455420729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33152 + ... + 44831.

Almost surely, 2^455420720 is an apocalyptic number.

455420720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

455420720 is an abundant number, since it is smaller than the sum of its proper divisors (617951056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

455420720 is a wasteful number, since it uses less digits than its factorization.

455420720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78069 (or 78063 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 455420720 is about 21340.5885579569. The cubic root of 455420720 is about 769.3741583569.

The spelling of 455420720 in words is "four hundred fifty-five million, four hundred twenty thousand, seven hundred twenty".